diff --git a/code/builders/builder-vite/src/codegen-modern-iframe-script.ts b/code/builders/builder-vite/src/codegen-modern-iframe-script.ts
index 7ad50afec12f..4abf4c22f315 100644
--- a/code/builders/builder-vite/src/codegen-modern-iframe-script.ts
+++ b/code/builders/builder-vite/src/codegen-modern-iframe-script.ts
@@ -27,7 +27,7 @@ export async function generateModernIframeScriptCode(options: Options, projectRo
       .map(
         (previewAnnotation, index) =>
           // Prefer the updated module from an HMR update, otherwise import the original module
-          `hmrPreviewAnnotationModules.at(${index}) ?? import('${previewAnnotation}')`
+          `hmrPreviewAnnotationModules[${index}] ?? import('${previewAnnotation}')`
       )
       .join(',\n')}])
     return composeConfigs(configs);